Enable comma-dangle for functions

Author: robertrossmann

coding-styles/recommended.js

@@ -18,7 +18,13 @@ module.exports = {
     // This rule enforces consistent use of trailing commas in object and array literals
     // Allow trailing commas for func parameters, array and object literals spread across
     // multiple lines
-    'comma-dangle': ['warn', 'always-multiline'],
+    'comma-dangle': ['warn', {
+      arrays: 'always-multiline',
+      objects: 'always-multiline',
+      imports: 'always-multiline',
+      exports: 'always-multiline',
+      functions: 'always-multiline',
+    }],
 
     // Require Camelcase
     // This rule looks for any underscores (_) located within the source code. It ignores leading